Johann Kater (age 15) and his sister Anna Katharina (age 3) are recorded on the 1767 census of Schwed in Household No. 2 along with their mother Elisabeth and stepfather Andreas Jäger.
They had settled in Schwed on 12 July 1767.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 140.